One that the worst problems that can happen to your Pontiac G6 is a bad fuel filter. As soon as the filter goes bad, it deserve to limit the quantity of fuel that enters the engine. Without fuel, the car will no run in ~ all. V that in mind, many of the symptom of a bad fuel filter revolve roughly the automobile stalling out.

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Fuel filters have actually been making a rearward progression for the last 50 years, literally. Because that a lengthy time, you’d find it under the hood. That looked favor a small pill, and it would be quick and also easy to replace. This was in the era that carbureted vehicles.

Things started to change in the 80’s. Fuel injection requires higher fuel pressure. Greater fuel pressure meant that a an ext robust fuel filter would be required. This meant the fuel filter was no longer left under the hood. The was put in the stole fuel line, between the gas tank and engine bay.

These fuel filter were more reliable, however they also were tougher to change. Repairing them means getting under the vehicle and disconnecting stole fittings. It yes, really still isn’t that difficult to deal with, as long as you give the vehicle a couple of minutes for the fuel push to go down.

The good news is, no matter how old your G6 is, the symptom of a negative fuel filter room universal. It doesn’t matter if it’s in-tank or in-line. And, fuel filters room cheap.

Signs that a bad Fuel Filter: Pontiac G6

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Typical Fuel Filter

There are physical signs that you deserve to feel as soon as your G6’s fuel filter is clogging. Prior to taking something apart, inspect to watch if her engines computer has any trouble codes saved in it.

The engine may throw a P0087 problem code. This trouble code detects that the fuel rail/system pressure is also low. Any type of trouble codes the exist can be a clue. Sometimes when over there is short fuel pressure, you may also get one oxygen sensor connected trouble password as well. The real problem with diagnosing a poor fuel filter is the it resembles numerous other vehicular worries in regards to symptoms.

Here are the most common symptoms that a poor fuel filter in your Pontiac G6:

Sputtering Under Load

The only method that you space going to know that your G6’s fuel filter may be going the end is the it is no much longer letting enough fuel with to store the engine to run under a heavy load, or in ~ high-speed. Typically, if you are heading increase a hill (or accelerating) the engine may start come feel like it is simply running out of steam. That’s what that feels like with a bad fuel filter.

Now, a negative fuel filter can likewise feel a heck of a lot like a poor catalytic converter. Both problems will make the motor feel prefer it is running out of wind once you hit the gas. A poor catalytic converter will not feel as jarring. It’s a smooth lack of power. If you space unsure, check out this write-up on troubleshooting catalytic converters. If you obtain P0420 or P0430 problem codes through a scanner, it very well might be the catalytic converter causing these symptoms.

Hard to begin Engine

One that the ideal indicators the a clogged fuel filter is going to be that the your G6 is daunting to start. This because there’s not enough fuel pressure to effectively atomize the fuel as it enters the burning chamber.

If your automobile is complicated to start, a clogged fuel filter would more than likely not be the location to begin looking, specifically if friend are getting no trouble code for fuel pressure or the oxygen sensors.

Instead, we’d recommend taking a look at the ignition device first. Frequently it’ll be bad spark plugs, or a negative coil pack.

Engine not Starting

If the fuel filter has come to be so contaminated the the minimum lot of fuel has not been let v it, the engine won’t start at all.

At the most an easy of levels your Pontiac G6 needs three points to start: Air, fuel, and also spark. If any of these points aren’t present, the engine won’t turn over at all. If there’s been zero warning the the fuel filter might be going negative (hesitation, an obstacle starting, etc) than a clogged fuel filter might not it is in the location to start. It could certainly cause the difficulty though.

Here’s a good video on making use of your eyes to diagnose the fuel filter:

It Could also be her G6’s Fuel Pump

A fuel pump the is going out is walking to feel the exact same as a bad fuel filter. This renders telling if you have actually a negative fuel pump vs negative fuel filter very challenging.

How do you tell castle apart? A clogged fuel filter will have high press on its intake side and low push on its calculation side. They space both going to cause the same hesitation at high speed and challenge starting. The only means to important tell is to location a fuel push gauge ~ above both political parties of the line and also get a reading from both.

If your automobile isn’t starting at all, and also you hear the fuel pump prime that is usually a good indication that the pump is functioning to some capacity. Trial and error your G6’s fuel press on every side of the pump would certainly be the best method to diagnose this problem.

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A priming fuel pump sounds prefer a high-pitched whine for a few seconds and also can be heard with a sharp engine right after the ignition an essential is turned, but before the starter is engaged.

Conclusion: Pontiac G6 negative Fuel Pump

The symptoms of a poor fuel pump enhance a most other common problems that can occur in the Pontiac G6. Trial and error the filter and also pressure on each side the it space going to it is in the quickest means to ascendancy it out. If over there is anything friend would choose to add, please leaving a comment below. Good luck!